jlo 300 starting trouble

[dodgefate]

Hi everybody! I just picked up a 1969 st300 attex with a JLO 300 motor. The motor was frozen up when i got it. I freed the motor, cleaned the points, rebuilt the carb and have good spark and compression now. The motor turns over fine feels like it has good compression ( cant test, dont have a adaptor that big) but wil not go bumpidy bump. I do not have the exaust hooked up yet (could this be my problem?). I have tried spraying starting fluid in it to get her going but no luck.. any help would be appriciated.

[LarryW]

This sounds like a tricky one. Going by your description sounds like it should do something even with exhaust off. Does the plug get wet?

[dodgefate]

plug stays dry for the most part...... even tried putting starting fluid in the cyl (tdc and bdc) and still nothing..... I would attempt to adjust the timing but the damn fly wheel is stuck on and it ripped the threads out trying to use the puller

[thebuggyman1]

You will have to retap the flywheel threads, but I doubt that is your problem for now. Where are you located? Maybe another local member would help you. This is why Mike set the site up with a LOCATION option, plus it makes it easier to get together for riding.

[racerone3]

you might have a sheared flywheel key. this would allow the flywheel to rotate on the crank shaft and the engine would be out of time. you would have a nice hot blue spark, but it wouldn't happen when the air/ fuel was in the combustion chamber. are you using the spark plug or a spark tester to see if you have spark? your problem could be as simple as a bad spark plug...

[dodgefate]

I am located in southern nj right outside of philadelphia pa. When I was attempting to pull the fly wheel I did see the key and it was in good shape. I bought brandey spanking new spark plugs for it *they were really hard to find. I tried to put my hand and then a paper towel over the carb as I was cranking it and did not feel any suction. I am woundering if somthing made a home inside one of the intake ports over the past 20 years. I plan on pulling the head and cyl later today and make sure it is not obstructed. I also plan on rebuilding the starter(cranks alittle slow)...... these are the only two things I can think of for now..... Any more ideas would be greatley appriciated and thanks for the quick responces. Well im off to bed for 4 hours or so then Ill be tearing into it.